Home / 186,421.07-257,261.10-101,538.20

Finding the Fourth Proportional to 186,421.07, 257,261.10 and 101,538.20

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Solution

The fourth proportional to 186,421.07, 257,261.10 and 101,538.20 is: 140,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,421.07 : 257,261.10 = 101,538.20 : x
  2. Step 2: Convert to fraction form
    186,421.07/257,261.10 = 101,538.20/x
  3. Step 3: Cross multiply
    186,421.07x = 257,261.10 × 101,538.20
  4. Step 4: Simplify right side
    186,421.07x = 26,121,829,024.02
  5. Step 5: Solve for x
    x = 26,121,829,024.02/186,421.07
  6. Step 6: Final answer
    x = 140,122.73

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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.