Home / 157,118.04-216,827.80-89,137.88

Finding the Fourth Proportional to 157,118.04, 216,827.80 and 89,137.88

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Solution

The fourth proportional to 157,118.04, 216,827.80 and 89,137.88 is: 123,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,118.04 : 216,827.80 = 89,137.88 : x
  2. Step 2: Convert to fraction form
    157,118.04/216,827.80 = 89,137.88/x
  3. Step 3: Cross multiply
    157,118.04x = 216,827.80 × 89,137.88
  4. Step 4: Simplify right side
    157,118.04x = 19,327,569,971.37
  5. Step 5: Solve for x
    x = 19,327,569,971.37/157,118.04
  6. Step 6: Final answer
    x = 123,013.05

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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.