Home / 145,767.28-218,438.16-64,616.40

Finding the Fourth Proportional to 145,767.28, 218,438.16 and 64,616.40

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Solution

The fourth proportional to 145,767.28, 218,438.16 and 64,616.40 is: 96,830.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,767.28 : 218,438.16 = 64,616.40 : x
  2. Step 2: Convert to fraction form
    145,767.28/218,438.16 = 64,616.40/x
  3. Step 3: Cross multiply
    145,767.28x = 218,438.16 × 64,616.40
  4. Step 4: Simplify right side
    145,767.28x = 14,114,687,521.82
  5. Step 5: Solve for x
    x = 14,114,687,521.82/145,767.28
  6. Step 6: Final answer
    x = 96,830.29

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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.