Home / 153,876.04-212,384.36-90,234.34

Finding the Fourth Proportional to 153,876.04, 212,384.36 and 90,234.34

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Solution

The fourth proportional to 153,876.04, 212,384.36 and 90,234.34 is: 124,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,876.04 : 212,384.36 = 90,234.34 : x
  2. Step 2: Convert to fraction form
    153,876.04/212,384.36 = 90,234.34/x
  3. Step 3: Cross multiply
    153,876.04x = 212,384.36 × 90,234.34
  4. Step 4: Simplify right side
    153,876.04x = 19,164,361,568.79
  5. Step 5: Solve for x
    x = 19,164,361,568.79/153,876.04
  6. Step 6: Final answer
    x = 124,544.16

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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.