Home / 103,701.28-155,261.40-56,145.64

Finding the Fourth Proportional to 103,701.28, 155,261.40 and 56,145.64

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Solution

The fourth proportional to 103,701.28, 155,261.40 and 56,145.64 is: 84,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,701.28 : 155,261.40 = 56,145.64 : x
  2. Step 2: Convert to fraction form
    103,701.28/155,261.40 = 56,145.64/x
  3. Step 3: Cross multiply
    103,701.28x = 155,261.40 × 56,145.64
  4. Step 4: Simplify right side
    103,701.28x = 8,717,250,670.30
  5. Step 5: Solve for x
    x = 8,717,250,670.30/103,701.28
  6. Step 6: Final answer
    x = 84,061.17

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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.