Home / 125,312.89-172,932.02-68,724.67

Finding the Fourth Proportional to 125,312.89, 172,932.02 and 68,724.67

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Solution

The fourth proportional to 125,312.89, 172,932.02 and 68,724.67 is: 94,840.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,312.89 : 172,932.02 = 68,724.67 : x
  2. Step 2: Convert to fraction form
    125,312.89/172,932.02 = 68,724.67/x
  3. Step 3: Cross multiply
    125,312.89x = 172,932.02 × 68,724.67
  4. Step 4: Simplify right side
    125,312.89x = 11,884,696,006.93
  5. Step 5: Solve for x
    x = 11,884,696,006.93/125,312.89
  6. Step 6: Final answer
    x = 94,840.17

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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.