Home / 88,085.10-132,127.65-86,918.70

Finding the Fourth Proportional to 88,085.10, 132,127.65 and 86,918.70

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Solution

The fourth proportional to 88,085.10, 132,127.65 and 86,918.70 is: 130,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,085.10 : 132,127.65 = 86,918.70 : x
  2. Step 2: Convert to fraction form
    88,085.10/132,127.65 = 86,918.70/x
  3. Step 3: Cross multiply
    88,085.10x = 132,127.65 × 86,918.70
  4. Step 4: Simplify right side
    88,085.10x = 11,484,363,572.06
  5. Step 5: Solve for x
    x = 11,484,363,572.06/88,085.10
  6. Step 6: Final answer
    x = 130,378.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.