Home / 145,422.95-218,132.76-56,738.75

Finding the Fourth Proportional to 145,422.95, 218,132.76 and 56,738.75

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Solution

The fourth proportional to 145,422.95, 218,132.76 and 56,738.75 is: 85,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,422.95 : 218,132.76 = 56,738.75 : x
  2. Step 2: Convert to fraction form
    145,422.95/218,132.76 = 56,738.75/x
  3. Step 3: Cross multiply
    145,422.95x = 218,132.76 × 56,738.75
  4. Step 4: Simplify right side
    145,422.95x = 12,376,579,045.79
  5. Step 5: Solve for x
    x = 12,376,579,045.79/145,422.95
  6. Step 6: Final answer
    x = 85,107.47

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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.