Home / 88,970.20-133,455.30-83,138.20

Finding the Fourth Proportional to 88,970.20, 133,455.30 and 83,138.20

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Solution

The fourth proportional to 88,970.20, 133,455.30 and 83,138.20 is: 124,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,970.20 : 133,455.30 = 83,138.20 : x
  2. Step 2: Convert to fraction form
    88,970.20/133,455.30 = 83,138.20/x
  3. Step 3: Cross multiply
    88,970.20x = 133,455.30 × 83,138.20
  4. Step 4: Simplify right side
    88,970.20x = 11,095,233,422.46
  5. Step 5: Solve for x
    x = 11,095,233,422.46/88,970.20
  6. Step 6: Final answer
    x = 124,707.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.