Home / 130,763.11-180,471.95-72,633.11

Finding the Fourth Proportional to 130,763.11, 180,471.95 and 72,633.11

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Solution

The fourth proportional to 130,763.11, 180,471.95 and 72,633.11 is: 100,244.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,763.11 : 180,471.95 = 72,633.11 : x
  2. Step 2: Convert to fraction form
    130,763.11/180,471.95 = 72,633.11/x
  3. Step 3: Cross multiply
    130,763.11x = 180,471.95 × 72,633.11
  4. Step 4: Simplify right side
    130,763.11x = 13,108,238,003.11
  5. Step 5: Solve for x
    x = 13,108,238,003.11/130,763.11
  6. Step 6: Final answer
    x = 100,244.16

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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.