Home / 103,960.08-155,188.02-91,348.71

Finding the Fourth Proportional to 103,960.08, 155,188.02 and 91,348.71

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Solution

The fourth proportional to 103,960.08, 155,188.02 and 91,348.71 is: 136,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,960.08 : 155,188.02 = 91,348.71 : x
  2. Step 2: Convert to fraction form
    103,960.08/155,188.02 = 91,348.71/x
  3. Step 3: Cross multiply
    103,960.08x = 155,188.02 × 91,348.71
  4. Step 4: Simplify right side
    103,960.08x = 14,176,225,434.45
  5. Step 5: Solve for x
    x = 14,176,225,434.45/103,960.08
  6. Step 6: Final answer
    x = 136,362.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.