Home / 124,830.72-187,088.40-54,626.40

Finding the Fourth Proportional to 124,830.72, 187,088.40 and 54,626.40

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Solution

The fourth proportional to 124,830.72, 187,088.40 and 54,626.40 is: 81,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,830.72 : 187,088.40 = 54,626.40 : x
  2. Step 2: Convert to fraction form
    124,830.72/187,088.40 = 54,626.40/x
  3. Step 3: Cross multiply
    124,830.72x = 187,088.40 × 54,626.40
  4. Step 4: Simplify right side
    124,830.72x = 10,219,965,773.76
  5. Step 5: Solve for x
    x = 10,219,965,773.76/124,830.72
  6. Step 6: Final answer
    x = 81,870.60

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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.