Home / 115,315.64-172,847.10-45,117.80

Finding the Fourth Proportional to 115,315.64, 172,847.10 and 45,117.80

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Solution

The fourth proportional to 115,315.64, 172,847.10 and 45,117.80 is: 67,627.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,315.64 : 172,847.10 = 45,117.80 : x
  2. Step 2: Convert to fraction form
    115,315.64/172,847.10 = 45,117.80/x
  3. Step 3: Cross multiply
    115,315.64x = 172,847.10 × 45,117.80
  4. Step 4: Simplify right side
    115,315.64x = 7,798,480,888.38
  5. Step 5: Solve for x
    x = 7,798,480,888.38/115,315.64
  6. Step 6: Final answer
    x = 67,627.26

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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.