Home / 105,397.04-145,445.88-57,650.24

Finding the Fourth Proportional to 105,397.04, 145,445.88 and 57,650.24

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Solution

The fourth proportional to 105,397.04, 145,445.88 and 57,650.24 is: 79,556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,397.04 : 145,445.88 = 57,650.24 : x
  2. Step 2: Convert to fraction form
    105,397.04/145,445.88 = 57,650.24/x
  3. Step 3: Cross multiply
    105,397.04x = 145,445.88 × 57,650.24
  4. Step 4: Simplify right side
    105,397.04x = 8,384,989,889.01
  5. Step 5: Solve for x
    x = 8,384,989,889.01/105,397.04
  6. Step 6: Final answer
    x = 79,556.22

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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.