Home / 147,915.23-204,221.48-87,505.22

Finding the Fourth Proportional to 147,915.23, 204,221.48 and 87,505.22

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Solution

The fourth proportional to 147,915.23, 204,221.48 and 87,505.22 is: 120,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,915.23 : 204,221.48 = 87,505.22 : x
  2. Step 2: Convert to fraction form
    147,915.23/204,221.48 = 87,505.22/x
  3. Step 3: Cross multiply
    147,915.23x = 204,221.48 × 87,505.22
  4. Step 4: Simplify right side
    147,915.23x = 17,870,444,077.49
  5. Step 5: Solve for x
    x = 17,870,444,077.49/147,915.23
  6. Step 6: Final answer
    x = 120,815.45

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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.