Home / 186,320.40-257,113.68-101,437.28

Finding the Fourth Proportional to 186,320.40, 257,113.68 and 101,437.28

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Solution

The fourth proportional to 186,320.40, 257,113.68 and 101,437.28 is: 139,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,320.40 : 257,113.68 = 101,437.28 : x
  2. Step 2: Convert to fraction form
    186,320.40/257,113.68 = 101,437.28/x
  3. Step 3: Cross multiply
    186,320.40x = 257,113.68 × 101,437.28
  4. Step 4: Simplify right side
    186,320.40x = 26,080,912,349.99
  5. Step 5: Solve for x
    x = 26,080,912,349.99/186,320.40
  6. Step 6: Final answer
    x = 139,978.83

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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.