Home / 156,903.66-216,527.07-85,283.65

Finding the Fourth Proportional to 156,903.66, 216,527.07 and 85,283.65

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Solution

The fourth proportional to 156,903.66, 216,527.07 and 85,283.65 is: 117,691.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.66 : 216,527.07 = 85,283.65 : x
  2. Step 2: Convert to fraction form
    156,903.66/216,527.07 = 85,283.65/x
  3. Step 3: Cross multiply
    156,903.66x = 216,527.07 × 85,283.65
  4. Step 4: Simplify right side
    156,903.66x = 18,466,218,853.41
  5. Step 5: Solve for x
    x = 18,466,218,853.41/156,903.66
  6. Step 6: Final answer
    x = 117,691.45

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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.