Home / 141,042-211,555.17-103,130.13

Finding the Fourth Proportional to 141,042, 211,555.17 and 103,130.13

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Solution

The fourth proportional to 141,042, 211,555.17 and 103,130.13 is: 154,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,042 : 211,555.17 = 103,130.13 : x
  2. Step 2: Convert to fraction form
    141,042/211,555.17 = 103,130.13/x
  3. Step 3: Cross multiply
    141,042x = 211,555.17 × 103,130.13
  4. Step 4: Simplify right side
    141,042x = 21,817,712,184.27
  5. Step 5: Solve for x
    x = 21,817,712,184.27/141,042
  6. Step 6: Final answer
    x = 154,689.47

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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.