Home / 130,717.72-180,395.58-74,140.12

Finding the Fourth Proportional to 130,717.72, 180,395.58 and 74,140.12

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Solution

The fourth proportional to 130,717.72, 180,395.58 and 74,140.12 is: 102,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,717.72 : 180,395.58 = 74,140.12 : x
  2. Step 2: Convert to fraction form
    130,717.72/180,395.58 = 74,140.12/x
  3. Step 3: Cross multiply
    130,717.72x = 180,395.58 × 74,140.12
  4. Step 4: Simplify right side
    130,717.72x = 13,374,549,948.67
  5. Step 5: Solve for x
    x = 13,374,549,948.67/130,717.72
  6. Step 6: Final answer
    x = 102,316.27

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1.5x scale

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.