Home / 153,235.49-230,066.46-78,407.28

Finding the Fourth Proportional to 153,235.49, 230,066.46 and 78,407.28

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Solution

The fourth proportional to 153,235.49, 230,066.46 and 78,407.28 is: 117,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,235.49 : 230,066.46 = 78,407.28 : x
  2. Step 2: Convert to fraction form
    153,235.49/230,066.46 = 78,407.28/x
  3. Step 3: Cross multiply
    153,235.49x = 230,066.46 × 78,407.28
  4. Step 4: Simplify right side
    153,235.49x = 18,038,885,347.83
  5. Step 5: Solve for x
    x = 18,038,885,347.83/153,235.49
  6. Step 6: Final answer
    x = 117,720.03

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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.