Home / 186,715.52-257,689.56-106,155.20

Finding the Fourth Proportional to 186,715.52, 257,689.56 and 106,155.20

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Solution

The fourth proportional to 186,715.52, 257,689.56 and 106,155.20 is: 146,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,715.52 : 257,689.56 = 106,155.20 : x
  2. Step 2: Convert to fraction form
    186,715.52/257,689.56 = 106,155.20/x
  3. Step 3: Cross multiply
    186,715.52x = 257,689.56 × 106,155.20
  4. Step 4: Simplify right side
    186,715.52x = 27,355,086,779.71
  5. Step 5: Solve for x
    x = 27,355,086,779.71/186,715.52
  6. Step 6: Final answer
    x = 146,506.76

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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.