Home / 185,999.55-256,681.54-103,215.23

Finding the Fourth Proportional to 185,999.55, 256,681.54 and 103,215.23

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Solution

The fourth proportional to 185,999.55, 256,681.54 and 103,215.23 is: 142,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,999.55 : 256,681.54 = 103,215.23 : x
  2. Step 2: Convert to fraction form
    185,999.55/256,681.54 = 103,215.23/x
  3. Step 3: Cross multiply
    185,999.55x = 256,681.54 × 103,215.23
  4. Step 4: Simplify right side
    185,999.55x = 26,493,443,671.78
  5. Step 5: Solve for x
    x = 26,493,443,671.78/185,999.55
  6. Step 6: Final answer
    x = 142,438.21

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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.