Home / 125,018.94-172,492.02-71,284.36

Finding the Fourth Proportional to 125,018.94, 172,492.02 and 71,284.36

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Solution

The fourth proportional to 125,018.94, 172,492.02 and 71,284.36 is: 98,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,018.94 : 172,492.02 = 71,284.36 : x
  2. Step 2: Convert to fraction form
    125,018.94/172,492.02 = 71,284.36/x
  3. Step 3: Cross multiply
    125,018.94x = 172,492.02 × 71,284.36
  4. Step 4: Simplify right side
    125,018.94x = 12,295,983,250.81
  5. Step 5: Solve for x
    x = 12,295,983,250.81/125,018.94
  6. Step 6: Final answer
    x = 98,352.96

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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.