Home / 130,718.16-180,380.52-74,134.80

Finding the Fourth Proportional to 130,718.16, 180,380.52 and 74,134.80

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Solution

The fourth proportional to 130,718.16, 180,380.52 and 74,134.80 is: 102,300.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,718.16 : 180,380.52 = 74,134.80 : x
  2. Step 2: Convert to fraction form
    130,718.16/180,380.52 = 74,134.80/x
  3. Step 3: Cross multiply
    130,718.16x = 180,380.52 × 74,134.80
  4. Step 4: Simplify right side
    130,718.16x = 13,372,473,774.10
  5. Step 5: Solve for x
    x = 13,372,473,774.10/130,718.16
  6. Step 6: Final answer
    x = 102,300.05

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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.