Home / 100,886.40-139,156.56-63,095.04

Finding the Fourth Proportional to 100,886.40, 139,156.56 and 63,095.04

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Solution

The fourth proportional to 100,886.40, 139,156.56 and 63,095.04 is: 87,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,886.40 : 139,156.56 = 63,095.04 : x
  2. Step 2: Convert to fraction form
    100,886.40/139,156.56 = 63,095.04/x
  3. Step 3: Cross multiply
    100,886.40x = 139,156.56 × 63,095.04
  4. Step 4: Simplify right side
    100,886.40x = 8,780,088,719.46
  5. Step 5: Solve for x
    x = 8,780,088,719.46/100,886.40
  6. Step 6: Final answer
    x = 87,029.46

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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.