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Finding the Fourth Proportional to 153,699, 230,347.58 and 78,755.64

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Solution

The fourth proportional to 153,699, 230,347.58 and 78,755.64 is: 118,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,699 : 230,347.58 = 78,755.64 : x
  2. Step 2: Convert to fraction form
    153,699/230,347.58 = 78,755.64/x
  3. Step 3: Cross multiply
    153,699x = 230,347.58 × 78,755.64
  4. Step 4: Simplify right side
    153,699x = 18,141,171,085.35
  5. Step 5: Solve for x
    x = 18,141,171,085.35/153,699
  6. Step 6: Final answer
    x = 118,030.51

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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.