Home / 123,615.37-170,560.85-69,888.68

Finding the Fourth Proportional to 123,615.37, 170,560.85 and 69,888.68

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Solution

The fourth proportional to 123,615.37, 170,560.85 and 69,888.68 is: 96,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,615.37 : 170,560.85 = 69,888.68 : x
  2. Step 2: Convert to fraction form
    123,615.37/170,560.85 = 69,888.68/x
  3. Step 3: Cross multiply
    123,615.37x = 170,560.85 × 69,888.68
  4. Step 4: Simplify right side
    123,615.37x = 11,920,272,666.18
  5. Step 5: Solve for x
    x = 11,920,272,666.18/123,615.37
  6. Step 6: Final answer
    x = 96,430.34

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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.