Home / 147,710.90-203,829.53-87,270.08

Finding the Fourth Proportional to 147,710.90, 203,829.53 and 87,270.08

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Solution

The fourth proportional to 147,710.90, 203,829.53 and 87,270.08 is: 120,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,710.90 : 203,829.53 = 87,270.08 : x
  2. Step 2: Convert to fraction form
    147,710.90/203,829.53 = 87,270.08/x
  3. Step 3: Cross multiply
    147,710.90x = 203,829.53 × 87,270.08
  4. Step 4: Simplify right side
    147,710.90x = 17,788,219,389.46
  5. Step 5: Solve for x
    x = 17,788,219,389.46/147,710.90
  6. Step 6: Final answer
    x = 120,425.91

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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.