Home / 157,135.16-216,851.42-89,155.01

Finding the Fourth Proportional to 157,135.16, 216,851.42 and 89,155.01

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Solution

The fourth proportional to 157,135.16, 216,851.42 and 89,155.01 is: 123,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,135.16 : 216,851.42 = 89,155.01 : x
  2. Step 2: Convert to fraction form
    157,135.16/216,851.42 = 89,155.01/x
  3. Step 3: Cross multiply
    157,135.16x = 216,851.42 × 89,155.01
  4. Step 4: Simplify right side
    157,135.16x = 19,333,388,988.58
  5. Step 5: Solve for x
    x = 19,333,388,988.58/157,135.16
  6. Step 6: Final answer
    x = 123,036.69

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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.