Home / 107,017.38-147,683.62-61,695.15

Finding the Fourth Proportional to 107,017.38, 147,683.62 and 61,695.15

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Solution

The fourth proportional to 107,017.38, 147,683.62 and 61,695.15 is: 85,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,017.38 : 147,683.62 = 61,695.15 : x
  2. Step 2: Convert to fraction form
    107,017.38/147,683.62 = 61,695.15/x
  3. Step 3: Cross multiply
    107,017.38x = 147,683.62 × 61,695.15
  4. Step 4: Simplify right side
    107,017.38x = 9,111,362,715.14
  5. Step 5: Solve for x
    x = 9,111,362,715.14/107,017.38
  6. Step 6: Final answer
    x = 85,139.09

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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.