Home / 99,637.61-148,827.84-83,891.21

Finding the Fourth Proportional to 99,637.61, 148,827.84 and 83,891.21

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Solution

The fourth proportional to 99,637.61, 148,827.84 and 83,891.21 is: 125,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,637.61 : 148,827.84 = 83,891.21 : x
  2. Step 2: Convert to fraction form
    99,637.61/148,827.84 = 83,891.21/x
  3. Step 3: Cross multiply
    99,637.61x = 148,827.84 × 83,891.21
  4. Step 4: Simplify right side
    99,637.61x = 12,485,346,520.56
  5. Step 5: Solve for x
    x = 12,485,346,520.56/99,637.61
  6. Step 6: Final answer
    x = 125,307.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.