Home / 137,562.19-189,840.57-77,133.55

Finding the Fourth Proportional to 137,562.19, 189,840.57 and 77,133.55

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Solution

The fourth proportional to 137,562.19, 189,840.57 and 77,133.55 is: 106,446.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,562.19 : 189,840.57 = 77,133.55 : x
  2. Step 2: Convert to fraction form
    137,562.19/189,840.57 = 77,133.55/x
  3. Step 3: Cross multiply
    137,562.19x = 189,840.57 × 77,133.55
  4. Step 4: Simplify right side
    137,562.19x = 14,643,077,098.12
  5. Step 5: Solve for x
    x = 14,643,077,098.12/137,562.19
  6. Step 6: Final answer
    x = 106,446.96

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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.