Home / 133,278.16-183,924.04-76,688.40

Finding the Fourth Proportional to 133,278.16, 183,924.04 and 76,688.40

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Solution

The fourth proportional to 133,278.16, 183,924.04 and 76,688.40 is: 105,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,278.16 : 183,924.04 = 76,688.40 : x
  2. Step 2: Convert to fraction form
    133,278.16/183,924.04 = 76,688.40/x
  3. Step 3: Cross multiply
    133,278.16x = 183,924.04 × 76,688.40
  4. Step 4: Simplify right side
    133,278.16x = 14,104,840,349.14
  5. Step 5: Solve for x
    x = 14,104,840,349.14/133,278.16
  6. Step 6: Final answer
    x = 105,830.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.