Home / 186,312.71-257,112.50-101,430.38

Finding the Fourth Proportional to 186,312.71, 257,112.50 and 101,430.38

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Solution

The fourth proportional to 186,312.71, 257,112.50 and 101,430.38 is: 139,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,312.71 : 257,112.50 = 101,430.38 : x
  2. Step 2: Convert to fraction form
    186,312.71/257,112.50 = 101,430.38/x
  3. Step 3: Cross multiply
    186,312.71x = 257,112.50 × 101,430.38
  4. Step 4: Simplify right side
    186,312.71x = 26,079,016,785.04
  5. Step 5: Solve for x
    x = 26,079,016,785.04/186,312.71
  6. Step 6: Final answer
    x = 139,974.44

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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.