Home / 142,048.60-196,091.40-90,386.92

Finding the Fourth Proportional to 142,048.60, 196,091.40 and 90,386.92

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Solution

The fourth proportional to 142,048.60, 196,091.40 and 90,386.92 is: 124,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,048.60 : 196,091.40 = 90,386.92 : x
  2. Step 2: Convert to fraction form
    142,048.60/196,091.40 = 90,386.92/x
  3. Step 3: Cross multiply
    142,048.60x = 196,091.40 × 90,386.92
  4. Step 4: Simplify right side
    142,048.60x = 17,724,097,684.49
  5. Step 5: Solve for x
    x = 17,724,097,684.49/142,048.60
  6. Step 6: Final answer
    x = 124,774.88

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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.