Home / 125,018.94-172,492.02-71,284.35

Finding the Fourth Proportional to 125,018.94, 172,492.02 and 71,284.35

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Solution

The fourth proportional to 125,018.94, 172,492.02 and 71,284.35 is: 98,352.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,018.94 : 172,492.02 = 71,284.35 : x
  2. Step 2: Convert to fraction form
    125,018.94/172,492.02 = 71,284.35/x
  3. Step 3: Cross multiply
    125,018.94x = 172,492.02 × 71,284.35
  4. Step 4: Simplify right side
    125,018.94x = 12,295,981,525.89
  5. Step 5: Solve for x
    x = 12,295,981,525.89/125,018.94
  6. Step 6: Final answer
    x = 98,352.95

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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.