Home / 147,288.60-203,281.35-86,865.89

Finding the Fourth Proportional to 147,288.60, 203,281.35 and 86,865.89

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Solution

The fourth proportional to 147,288.60, 203,281.35 and 86,865.89 is: 119,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,288.60 : 203,281.35 = 86,865.89 : x
  2. Step 2: Convert to fraction form
    147,288.60/203,281.35 = 86,865.89/x
  3. Step 3: Cross multiply
    147,288.60x = 203,281.35 × 86,865.89
  4. Step 4: Simplify right side
    147,288.60x = 17,658,214,371.74
  5. Step 5: Solve for x
    x = 17,658,214,371.74/147,288.60
  6. Step 6: Final answer
    x = 119,888.53

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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.