Home / 170,428.18-255,359.76-103,666.36

Finding the Fourth Proportional to 170,428.18, 255,359.76 and 103,666.36

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Solution

The fourth proportional to 170,428.18, 255,359.76 and 103,666.36 is: 155,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,428.18 : 255,359.76 = 103,666.36 : x
  2. Step 2: Convert to fraction form
    170,428.18/255,359.76 = 103,666.36/x
  3. Step 3: Cross multiply
    170,428.18x = 255,359.76 × 103,666.36
  4. Step 4: Simplify right side
    170,428.18x = 26,472,216,809.67
  5. Step 5: Solve for x
    x = 26,472,216,809.67/170,428.18
  6. Step 6: Final answer
    x = 155,327.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.