Home / 134,358.08-201,478.80-78,254.24

Finding the Fourth Proportional to 134,358.08, 201,478.80 and 78,254.24

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Solution

The fourth proportional to 134,358.08, 201,478.80 and 78,254.24 is: 117,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,358.08 : 201,478.80 = 78,254.24 : x
  2. Step 2: Convert to fraction form
    134,358.08/201,478.80 = 78,254.24/x
  3. Step 3: Cross multiply
    134,358.08x = 201,478.80 × 78,254.24
  4. Step 4: Simplify right side
    134,358.08x = 15,766,570,370.11
  5. Step 5: Solve for x
    x = 15,766,570,370.11/134,358.08
  6. Step 6: Final answer
    x = 117,347.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.