Home / 97,228.80-134,319.60-90,590.40

Finding the Fourth Proportional to 97,228.80, 134,319.60 and 90,590.40

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Solution

The fourth proportional to 97,228.80, 134,319.60 and 90,590.40 is: 125,148.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,228.80 : 134,319.60 = 90,590.40 : x
  2. Step 2: Convert to fraction form
    97,228.80/134,319.60 = 90,590.40/x
  3. Step 3: Cross multiply
    97,228.80x = 134,319.60 × 90,590.40
  4. Step 4: Simplify right side
    97,228.80x = 12,168,066,291.84
  5. Step 5: Solve for x
    x = 12,168,066,291.84/97,228.80
  6. Step 6: Final answer
    x = 125,148.79

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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.