Home / 91,396.80-126,192.96-71,276.16

Finding the Fourth Proportional to 91,396.80, 126,192.96 and 71,276.16

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Solution

The fourth proportional to 91,396.80, 126,192.96 and 71,276.16 is: 98,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,396.80 : 126,192.96 = 71,276.16 : x
  2. Step 2: Convert to fraction form
    91,396.80/126,192.96 = 71,276.16/x
  3. Step 3: Cross multiply
    91,396.80x = 126,192.96 × 71,276.16
  4. Step 4: Simplify right side
    91,396.80x = 8,994,549,607.83
  5. Step 5: Solve for x
    x = 8,994,549,607.83/91,396.80
  6. Step 6: Final answer
    x = 98,412.08

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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.