Home / 130,665.84-180,374.03-88,281.78

Finding the Fourth Proportional to 130,665.84, 180,374.03 and 88,281.78

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Solution

The fourth proportional to 130,665.84, 180,374.03 and 88,281.78 is: 121,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,665.84 : 180,374.03 = 88,281.78 : x
  2. Step 2: Convert to fraction form
    130,665.84/180,374.03 = 88,281.78/x
  3. Step 3: Cross multiply
    130,665.84x = 180,374.03 × 88,281.78
  4. Step 4: Simplify right side
    130,665.84x = 15,923,740,434.17
  5. Step 5: Solve for x
    x = 15,923,740,434.17/130,665.84
  6. Step 6: Final answer
    x = 121,866.13

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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.