Home / 115,643.48-173,479.12-40,748.15

Finding the Fourth Proportional to 115,643.48, 173,479.12 and 40,748.15

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Solution

The fourth proportional to 115,643.48, 173,479.12 and 40,748.15 is: 61,127.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,643.48 : 173,479.12 = 40,748.15 : x
  2. Step 2: Convert to fraction form
    115,643.48/173,479.12 = 40,748.15/x
  3. Step 3: Cross multiply
    115,643.48x = 173,479.12 × 40,748.15
  4. Step 4: Simplify right side
    115,643.48x = 7,068,952,559.64
  5. Step 5: Solve for x
    x = 7,068,952,559.64/115,643.48
  6. Step 6: Final answer
    x = 61,127.12

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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.