Home / 156,988.22-216,649.45-89,933.18

Finding the Fourth Proportional to 156,988.22, 216,649.45 and 89,933.18

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Solution

The fourth proportional to 156,988.22, 216,649.45 and 89,933.18 is: 124,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.22 : 216,649.45 = 89,933.18 : x
  2. Step 2: Convert to fraction form
    156,988.22/216,649.45 = 89,933.18/x
  3. Step 3: Cross multiply
    156,988.22x = 216,649.45 × 89,933.18
  4. Step 4: Simplify right side
    156,988.22x = 19,483,974,525.37
  5. Step 5: Solve for x
    x = 19,483,974,525.37/156,988.22
  6. Step 6: Final answer
    x = 124,111.06

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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.