Home / 142,024.16-195,993.32-78,362.08

Finding the Fourth Proportional to 142,024.16, 195,993.32 and 78,362.08

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Solution

The fourth proportional to 142,024.16, 195,993.32 and 78,362.08 is: 108,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,024.16 : 195,993.32 = 78,362.08 : x
  2. Step 2: Convert to fraction form
    142,024.16/195,993.32 = 78,362.08/x
  3. Step 3: Cross multiply
    142,024.16x = 195,993.32 × 78,362.08
  4. Step 4: Simplify right side
    142,024.16x = 15,358,444,221.31
  5. Step 5: Solve for x
    x = 15,358,444,221.31/142,024.16
  6. Step 6: Final answer
    x = 108,139.66

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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.