Home / 185,689.13-256,254.10-100,806.19

Finding the Fourth Proportional to 185,689.13, 256,254.10 and 100,806.19

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Solution

The fourth proportional to 185,689.13, 256,254.10 and 100,806.19 is: 139,114.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,689.13 : 256,254.10 = 100,806.19 : x
  2. Step 2: Convert to fraction form
    185,689.13/256,254.10 = 100,806.19/x
  3. Step 3: Cross multiply
    185,689.13x = 256,254.10 × 100,806.19
  4. Step 4: Simplify right side
    185,689.13x = 25,831,998,600.23
  5. Step 5: Solve for x
    x = 25,831,998,600.23/185,689.13
  6. Step 6: Final answer
    x = 139,114.22

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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.