Home / 130,653.28-180,305.16-74,068.30

Finding the Fourth Proportional to 130,653.28, 180,305.16 and 74,068.30

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Solution

The fourth proportional to 130,653.28, 180,305.16 and 74,068.30 is: 102,216.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,653.28 : 180,305.16 = 74,068.30 : x
  2. Step 2: Convert to fraction form
    130,653.28/180,305.16 = 74,068.30/x
  3. Step 3: Cross multiply
    130,653.28x = 180,305.16 × 74,068.30
  4. Step 4: Simplify right side
    130,653.28x = 13,354,896,682.43
  5. Step 5: Solve for x
    x = 13,354,896,682.43/130,653.28
  6. Step 6: Final answer
    x = 102,216.31

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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.