Home / 115,347.58-172,915.66-40,426.88

Finding the Fourth Proportional to 115,347.58, 172,915.66 and 40,426.88

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Solution

The fourth proportional to 115,347.58, 172,915.66 and 40,426.88 is: 60,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,347.58 : 172,915.66 = 40,426.88 : x
  2. Step 2: Convert to fraction form
    115,347.58/172,915.66 = 40,426.88/x
  3. Step 3: Cross multiply
    115,347.58x = 172,915.66 × 40,426.88
  4. Step 4: Simplify right side
    115,347.58x = 6,990,440,968.16
  5. Step 5: Solve for x
    x = 6,990,440,968.16/115,347.58
  6. Step 6: Final answer
    x = 60,603.28

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1.5x scale

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.