Home / 124,666.16-187,840.73-102,965.64

Finding the Fourth Proportional to 124,666.16, 187,840.73 and 102,965.64

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Solution

The fourth proportional to 124,666.16, 187,840.73 and 102,965.64 is: 155,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,666.16 : 187,840.73 = 102,965.64 : x
  2. Step 2: Convert to fraction form
    124,666.16/187,840.73 = 102,965.64/x
  3. Step 3: Cross multiply
    124,666.16x = 187,840.73 × 102,965.64
  4. Step 4: Simplify right side
    124,666.16x = 19,341,140,467.69
  5. Step 5: Solve for x
    x = 19,341,140,467.69/124,666.16
  6. Step 6: Final answer
    x = 155,143.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.