Home / 157,017.04-216,678.88-89,040.20

Finding the Fourth Proportional to 157,017.04, 216,678.88 and 89,040.20

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Solution

The fourth proportional to 157,017.04, 216,678.88 and 89,040.20 is: 122,872.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,017.04 : 216,678.88 = 89,040.20 : x
  2. Step 2: Convert to fraction form
    157,017.04/216,678.88 = 89,040.20/x
  3. Step 3: Cross multiply
    157,017.04x = 216,678.88 × 89,040.20
  4. Step 4: Simplify right side
    157,017.04x = 19,293,130,810.98
  5. Step 5: Solve for x
    x = 19,293,130,810.98/157,017.04
  6. Step 6: Final answer
    x = 122,872.85

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1.5x scale

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.