Home / 109,146.90-150,631.47-61,397.40

Finding the Fourth Proportional to 109,146.90, 150,631.47 and 61,397.40

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Solution

The fourth proportional to 109,146.90, 150,631.47 and 61,397.40 is: 84,733.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,146.90 : 150,631.47 = 61,397.40 : x
  2. Step 2: Convert to fraction form
    109,146.90/150,631.47 = 61,397.40/x
  3. Step 3: Cross multiply
    109,146.90x = 150,631.47 × 61,397.40
  4. Step 4: Simplify right side
    109,146.90x = 9,248,380,616.18
  5. Step 5: Solve for x
    x = 9,248,380,616.18/109,146.90
  6. Step 6: Final answer
    x = 84,733.33

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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.