Home / 185,720.99-256,280.96-105,130.04

Finding the Fourth Proportional to 185,720.99, 256,280.96 and 105,130.04

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Solution

The fourth proportional to 185,720.99, 256,280.96 and 105,130.04 is: 145,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,720.99 : 256,280.96 = 105,130.04 : x
  2. Step 2: Convert to fraction form
    185,720.99/256,280.96 = 105,130.04/x
  3. Step 3: Cross multiply
    185,720.99x = 256,280.96 × 105,130.04
  4. Step 4: Simplify right side
    185,720.99x = 26,942,826,557.46
  5. Step 5: Solve for x
    x = 26,942,826,557.46/185,720.99
  6. Step 6: Final answer
    x = 145,071.53

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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.