Home / 141,387.15-212,058.72-91,818.66

Finding the Fourth Proportional to 141,387.15, 212,058.72 and 91,818.66

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Solution

The fourth proportional to 141,387.15, 212,058.72 and 91,818.66 is: 137,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,387.15 : 212,058.72 = 91,818.66 : x
  2. Step 2: Convert to fraction form
    141,387.15/212,058.72 = 91,818.66/x
  3. Step 3: Cross multiply
    141,387.15x = 212,058.72 × 91,818.66
  4. Step 4: Simplify right side
    141,387.15x = 19,470,947,511.72
  5. Step 5: Solve for x
    x = 19,470,947,511.72/141,387.15
  6. Step 6: Final answer
    x = 137,713.70

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1.5x scale

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.