Home / 103,134.25-142,325.47-58,422.25

Finding the Fourth Proportional to 103,134.25, 142,325.47 and 58,422.25

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Solution

The fourth proportional to 103,134.25, 142,325.47 and 58,422.25 is: 80,622.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,134.25 : 142,325.47 = 58,422.25 : x
  2. Step 2: Convert to fraction form
    103,134.25/142,325.47 = 58,422.25/x
  3. Step 3: Cross multiply
    103,134.25x = 142,325.47 × 58,422.25
  4. Step 4: Simplify right side
    103,134.25x = 8,314,974,189.71
  5. Step 5: Solve for x
    x = 8,314,974,189.71/103,134.25
  6. Step 6: Final answer
    x = 80,622.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.