Home / 130,655.36-180,306.56-74,065.60

Finding the Fourth Proportional to 130,655.36, 180,306.56 and 74,065.60

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Solution

The fourth proportional to 130,655.36, 180,306.56 and 74,065.60 is: 102,211.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,655.36 : 180,306.56 = 74,065.60 : x
  2. Step 2: Convert to fraction form
    130,655.36/180,306.56 = 74,065.60/x
  3. Step 3: Cross multiply
    130,655.36x = 180,306.56 × 74,065.60
  4. Step 4: Simplify right side
    130,655.36x = 13,354,513,550.34
  5. Step 5: Solve for x
    x = 13,354,513,550.34/130,655.36
  6. Step 6: Final answer
    x = 102,211.75

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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.