Home / 103,474,881.70-155,212,322.55-86,468,769.70

Finding the Fourth Proportional to 103,474,881.70, 155,212,322.55 and 86,468,769.70

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Solution

The fourth proportional to 103,474,881.70, 155,212,322.55 and 86,468,769.70 is: 129,703,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,474,881.70 : 155,212,322.55 = 86,468,769.70 : x
  2. Step 2: Convert to fraction form
    103,474,881.70/155,212,322.55 = 86,468,769.70/x
  3. Step 3: Cross multiply
    103,474,881.70x = 155,212,322.55 × 86,468,769.70
  4. Step 4: Simplify right side
    103,474,881.70x = 13,421,018,573,178,068
  5. Step 5: Solve for x
    x = 13,421,018,573,178,068/103,474,881.70
  6. Step 6: Final answer
    x = 129,703,154.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.