Home / 152,701.36-228,864.12-72,781.36

Finding the Fourth Proportional to 152,701.36, 228,864.12 and 72,781.36

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Solution

The fourth proportional to 152,701.36, 228,864.12 and 72,781.36 is: 109,082.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,701.36 : 228,864.12 = 72,781.36 : x
  2. Step 2: Convert to fraction form
    152,701.36/228,864.12 = 72,781.36/x
  3. Step 3: Cross multiply
    152,701.36x = 228,864.12 × 72,781.36
  4. Step 4: Simplify right side
    152,701.36x = 16,657,041,908.80
  5. Step 5: Solve for x
    x = 16,657,041,908.80/152,701.36
  6. Step 6: Final answer
    x = 109,082.47

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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.