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Finding the Fourth Proportional to 123,587.98, 170,560.16 and 69,873.51

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Solution

The fourth proportional to 123,587.98, 170,560.16 and 69,873.51 is: 96,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,587.98 : 170,560.16 = 69,873.51 : x
  2. Step 2: Convert to fraction form
    123,587.98/170,560.16 = 69,873.51/x
  3. Step 3: Cross multiply
    123,587.98x = 170,560.16 × 69,873.51
  4. Step 4: Simplify right side
    123,587.98x = 11,917,637,045.36
  5. Step 5: Solve for x
    x = 11,917,637,045.36/123,587.98
  6. Step 6: Final answer
    x = 96,430.39

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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.