Home / 102,368.10-141,355.23-64,191.87

Finding the Fourth Proportional to 102,368.10, 141,355.23 and 64,191.87

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Solution

The fourth proportional to 102,368.10, 141,355.23 and 64,191.87 is: 88,639.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,368.10 : 141,355.23 = 64,191.87 : x
  2. Step 2: Convert to fraction form
    102,368.10/141,355.23 = 64,191.87/x
  3. Step 3: Cross multiply
    102,368.10x = 141,355.23 × 64,191.87
  4. Step 4: Simplify right side
    102,368.10x = 9,073,856,547.98
  5. Step 5: Solve for x
    x = 9,073,856,547.98/102,368.10
  6. Step 6: Final answer
    x = 88,639.49

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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.