Home / 153,148.32-229,722.48-69,984

Finding the Fourth Proportional to 153,148.32, 229,722.48 and 69,984

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Solution

The fourth proportional to 153,148.32, 229,722.48 and 69,984 is: 104,976

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,148.32 : 229,722.48 = 69,984 : x
  2. Step 2: Convert to fraction form
    153,148.32/229,722.48 = 69,984/x
  3. Step 3: Cross multiply
    153,148.32x = 229,722.48 × 69,984
  4. Step 4: Simplify right side
    153,148.32x = 16,076,898,040.32
  5. Step 5: Solve for x
    x = 16,076,898,040.32/153,148.32
  6. Step 6: Final answer
    x = 104,976

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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.