Home / 186,420.07-257,259.72-101,537.20

Finding the Fourth Proportional to 186,420.07, 257,259.72 and 101,537.20

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Solution

The fourth proportional to 186,420.07, 257,259.72 and 101,537.20 is: 140,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,420.07 : 257,259.72 = 101,537.20 : x
  2. Step 2: Convert to fraction form
    186,420.07/257,259.72 = 101,537.20/x
  3. Step 3: Cross multiply
    186,420.07x = 257,259.72 × 101,537.20
  4. Step 4: Simplify right side
    186,420.07x = 26,121,431,641.58
  5. Step 5: Solve for x
    x = 26,121,431,641.58/186,420.07
  6. Step 6: Final answer
    x = 140,121.35

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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.