Home / 142,534.12-196,567.14-122,384.68

Finding the Fourth Proportional to 142,534.12, 196,567.14 and 122,384.68

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Solution

The fourth proportional to 142,534.12, 196,567.14 and 122,384.68 is: 168,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,534.12 : 196,567.14 = 122,384.68 : x
  2. Step 2: Convert to fraction form
    142,534.12/196,567.14 = 122,384.68/x
  3. Step 3: Cross multiply
    142,534.12x = 196,567.14 × 122,384.68
  4. Step 4: Simplify right side
    142,534.12x = 24,056,806,527.42
  5. Step 5: Solve for x
    x = 24,056,806,527.42/142,534.12
  6. Step 6: Final answer
    x = 168,779.28

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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.