Home / 132,971.19-183,504.86-72,545.15

Finding the Fourth Proportional to 132,971.19, 183,504.86 and 72,545.15

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Solution

The fourth proportional to 132,971.19, 183,504.86 and 72,545.15 is: 100,114.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,971.19 : 183,504.86 = 72,545.15 : x
  2. Step 2: Convert to fraction form
    132,971.19/183,504.86 = 72,545.15/x
  3. Step 3: Cross multiply
    132,971.19x = 183,504.86 × 72,545.15
  4. Step 4: Simplify right side
    132,971.19x = 13,312,387,962.51
  5. Step 5: Solve for x
    x = 13,312,387,962.51/132,971.19
  6. Step 6: Final answer
    x = 100,114.83

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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.