Home / 125,438.16-173,102.19-70,989.32

Finding the Fourth Proportional to 125,438.16, 173,102.19 and 70,989.32

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Solution

The fourth proportional to 125,438.16, 173,102.19 and 70,989.32 is: 97,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,438.16 : 173,102.19 = 70,989.32 : x
  2. Step 2: Convert to fraction form
    125,438.16/173,102.19 = 70,989.32/x
  3. Step 3: Cross multiply
    125,438.16x = 173,102.19 × 70,989.32
  4. Step 4: Simplify right side
    125,438.16x = 12,288,406,758.61
  5. Step 5: Solve for x
    x = 12,288,406,758.61/125,438.16
  6. Step 6: Final answer
    x = 97,963.86

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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.