Home / 192,011.40-288,017.10-103,437.90

Finding the Fourth Proportional to 192,011.40, 288,017.10 and 103,437.90

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Solution

The fourth proportional to 192,011.40, 288,017.10 and 103,437.90 is: 155,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,011.40 : 288,017.10 = 103,437.90 : x
  2. Step 2: Convert to fraction form
    192,011.40/288,017.10 = 103,437.90/x
  3. Step 3: Cross multiply
    192,011.40x = 288,017.10 × 103,437.90
  4. Step 4: Simplify right side
    192,011.40x = 29,791,883,988.09
  5. Step 5: Solve for x
    x = 29,791,883,988.09/192,011.40
  6. Step 6: Final answer
    x = 155,156.85

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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.