Home / 98,123.16-135,374.52-55,657.08

Finding the Fourth Proportional to 98,123.16, 135,374.52 and 55,657.08

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Solution

The fourth proportional to 98,123.16, 135,374.52 and 55,657.08 is: 76,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,123.16 : 135,374.52 = 55,657.08 : x
  2. Step 2: Convert to fraction form
    98,123.16/135,374.52 = 55,657.08/x
  3. Step 3: Cross multiply
    98,123.16x = 135,374.52 × 55,657.08
  4. Step 4: Simplify right side
    98,123.16x = 7,534,550,489.60
  5. Step 5: Solve for x
    x = 7,534,550,489.60/98,123.16
  6. Step 6: Final answer
    x = 76,786.67

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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.