Home / 130,564.01-180,176.51-72,418.97

Finding the Fourth Proportional to 130,564.01, 180,176.51 and 72,418.97

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Solution

The fourth proportional to 130,564.01, 180,176.51 and 72,418.97 is: 99,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,564.01 : 180,176.51 = 72,418.97 : x
  2. Step 2: Convert to fraction form
    130,564.01/180,176.51 = 72,418.97/x
  3. Step 3: Cross multiply
    130,564.01x = 180,176.51 × 72,418.97
  4. Step 4: Simplify right side
    130,564.01x = 13,048,196,552.56
  5. Step 5: Solve for x
    x = 13,048,196,552.56/130,564.01
  6. Step 6: Final answer
    x = 99,937.17

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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.