Home / 142,082.16-196,070.37-77,549.25

Finding the Fourth Proportional to 142,082.16, 196,070.37 and 77,549.25

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Solution

The fourth proportional to 142,082.16, 196,070.37 and 77,549.25 is: 107,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,082.16 : 196,070.37 = 77,549.25 : x
  2. Step 2: Convert to fraction form
    142,082.16/196,070.37 = 77,549.25/x
  3. Step 3: Cross multiply
    142,082.16x = 196,070.37 × 77,549.25
  4. Step 4: Simplify right side
    142,082.16x = 15,205,110,140.72
  5. Step 5: Solve for x
    x = 15,205,110,140.72/142,082.16
  6. Step 6: Final answer
    x = 107,016.32

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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.