Home / 107,729.08-148,675.50-63,031.48

Finding the Fourth Proportional to 107,729.08, 148,675.50 and 63,031.48

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Solution

The fourth proportional to 107,729.08, 148,675.50 and 63,031.48 is: 86,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,729.08 : 148,675.50 = 63,031.48 : x
  2. Step 2: Convert to fraction form
    107,729.08/148,675.50 = 63,031.48/x
  3. Step 3: Cross multiply
    107,729.08x = 148,675.50 × 63,031.48
  4. Step 4: Simplify right side
    107,729.08x = 9,371,236,804.74
  5. Step 5: Solve for x
    x = 9,371,236,804.74/107,729.08
  6. Step 6: Final answer
    x = 86,988.92

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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.