Home / 98,177.04-135,485.15-55,157.40

Finding the Fourth Proportional to 98,177.04, 135,485.15 and 55,157.40

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Solution

The fourth proportional to 98,177.04, 135,485.15 and 55,157.40 is: 76,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,177.04 : 135,485.15 = 55,157.40 : x
  2. Step 2: Convert to fraction form
    98,177.04/135,485.15 = 55,157.40/x
  3. Step 3: Cross multiply
    98,177.04x = 135,485.15 × 55,157.40
  4. Step 4: Simplify right side
    98,177.04x = 7,473,008,336.82
  5. Step 5: Solve for x
    x = 7,473,008,336.82/98,177.04
  6. Step 6: Final answer
    x = 76,117.68

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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.