Home / 158,342.76-218,513.70-85,746.60

Finding the Fourth Proportional to 158,342.76, 218,513.70 and 85,746.60

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Solution

The fourth proportional to 158,342.76, 218,513.70 and 85,746.60 is: 118,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,342.76 : 218,513.70 = 85,746.60 : x
  2. Step 2: Convert to fraction form
    158,342.76/218,513.70 = 85,746.60/x
  3. Step 3: Cross multiply
    158,342.76x = 218,513.70 × 85,746.60
  4. Step 4: Simplify right side
    158,342.76x = 18,736,806,828.42
  5. Step 5: Solve for x
    x = 18,736,806,828.42/158,342.76
  6. Step 6: Final answer
    x = 118,330.68

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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.