Home / 140,349.28-193,683.36-76,687.07

Finding the Fourth Proportional to 140,349.28, 193,683.36 and 76,687.07

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Solution

The fourth proportional to 140,349.28, 193,683.36 and 76,687.07 is: 105,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,349.28 : 193,683.36 = 76,687.07 : x
  2. Step 2: Convert to fraction form
    140,349.28/193,683.36 = 76,687.07/x
  3. Step 3: Cross multiply
    140,349.28x = 193,683.36 × 76,687.07
  4. Step 4: Simplify right side
    140,349.28x = 14,853,009,386.16
  5. Step 5: Solve for x
    x = 14,853,009,386.16/140,349.28
  6. Step 6: Final answer
    x = 105,828.90

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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.