Home / 115,486.40-173,359.20-89,307.20

Finding the Fourth Proportional to 115,486.40, 173,359.20 and 89,307.20

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Solution

The fourth proportional to 115,486.40, 173,359.20 and 89,307.20 is: 134,061.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,486.40 : 173,359.20 = 89,307.20 : x
  2. Step 2: Convert to fraction form
    115,486.40/173,359.20 = 89,307.20/x
  3. Step 3: Cross multiply
    115,486.40x = 173,359.20 × 89,307.20
  4. Step 4: Simplify right side
    115,486.40x = 15,482,224,746.24
  5. Step 5: Solve for x
    x = 15,482,224,746.24/115,486.40
  6. Step 6: Final answer
    x = 134,061.02

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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.