Home / 125,763.81-173,557.28-68,406.40

Finding the Fourth Proportional to 125,763.81, 173,557.28 and 68,406.40

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Solution

The fourth proportional to 125,763.81, 173,557.28 and 68,406.40 is: 94,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,763.81 : 173,557.28 = 68,406.40 : x
  2. Step 2: Convert to fraction form
    125,763.81/173,557.28 = 68,406.40/x
  3. Step 3: Cross multiply
    125,763.81x = 173,557.28 × 68,406.40
  4. Step 4: Simplify right side
    125,763.81x = 11,872,428,718.59
  5. Step 5: Solve for x
    x = 11,872,428,718.59/125,763.81
  6. Step 6: Final answer
    x = 94,402.58

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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.