Home / 99,006.40-148,509.60-72,434.35

Finding the Fourth Proportional to 99,006.40, 148,509.60 and 72,434.35

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Solution

The fourth proportional to 99,006.40, 148,509.60 and 72,434.35 is: 108,651.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,006.40 : 148,509.60 = 72,434.35 : x
  2. Step 2: Convert to fraction form
    99,006.40/148,509.60 = 72,434.35/x
  3. Step 3: Cross multiply
    99,006.40x = 148,509.60 × 72,434.35
  4. Step 4: Simplify right side
    99,006.40x = 10,757,196,344.76
  5. Step 5: Solve for x
    x = 10,757,196,344.76/99,006.40
  6. Step 6: Final answer
    x = 108,651.53

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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.