Home / 113,448.40-156,556.20-71,030.32

Finding the Fourth Proportional to 113,448.40, 156,556.20 and 71,030.32

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Solution

The fourth proportional to 113,448.40, 156,556.20 and 71,030.32 is: 98,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,448.40 : 156,556.20 = 71,030.32 : x
  2. Step 2: Convert to fraction form
    113,448.40/156,556.20 = 71,030.32/x
  3. Step 3: Cross multiply
    113,448.40x = 156,556.20 × 71,030.32
  4. Step 4: Simplify right side
    113,448.40x = 11,120,236,983.98
  5. Step 5: Solve for x
    x = 11,120,236,983.98/113,448.40
  6. Step 6: Final answer
    x = 98,020.22

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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.