Home / 115,023.04-158,727.90-64,712.32

Finding the Fourth Proportional to 115,023.04, 158,727.90 and 64,712.32

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Solution

The fourth proportional to 115,023.04, 158,727.90 and 64,712.32 is: 89,300.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,023.04 : 158,727.90 = 64,712.32 : x
  2. Step 2: Convert to fraction form
    115,023.04/158,727.90 = 64,712.32/x
  3. Step 3: Cross multiply
    115,023.04x = 158,727.90 × 64,712.32
  4. Step 4: Simplify right side
    115,023.04x = 10,271,650,503.58
  5. Step 5: Solve for x
    x = 10,271,650,503.58/115,023.04
  6. Step 6: Final answer
    x = 89,300.81

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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.