Home / 108,780.66-150,117.17-61,038.45

Finding the Fourth Proportional to 108,780.66, 150,117.17 and 61,038.45

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Solution

The fourth proportional to 108,780.66, 150,117.17 and 61,038.45 is: 84,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,780.66 : 150,117.17 = 61,038.45 : x
  2. Step 2: Convert to fraction form
    108,780.66/150,117.17 = 61,038.45/x
  3. Step 3: Cross multiply
    108,780.66x = 150,117.17 × 61,038.45
  4. Step 4: Simplify right side
    108,780.66x = 9,162,919,069.99
  5. Step 5: Solve for x
    x = 9,162,919,069.99/108,780.66
  6. Step 6: Final answer
    x = 84,232.98

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1.5x scale

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.