Home / 121,118.13-181,492.98-57,851.14

Finding the Fourth Proportional to 121,118.13, 181,492.98 and 57,851.14

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Solution

The fourth proportional to 121,118.13, 181,492.98 and 57,851.14 is: 86,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,118.13 : 181,492.98 = 57,851.14 : x
  2. Step 2: Convert to fraction form
    121,118.13/181,492.98 = 57,851.14/x
  3. Step 3: Cross multiply
    121,118.13x = 181,492.98 × 57,851.14
  4. Step 4: Simplify right side
    121,118.13x = 10,499,575,341.26
  5. Step 5: Solve for x
    x = 10,499,575,341.26/121,118.13
  6. Step 6: Final answer
    x = 86,688.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.