Home / 185,699.79-256,281.57-105,141.51

Finding the Fourth Proportional to 185,699.79, 256,281.57 and 105,141.51

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Solution

The fourth proportional to 185,699.79, 256,281.57 and 105,141.51 is: 145,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,699.79 : 256,281.57 = 105,141.51 : x
  2. Step 2: Convert to fraction form
    185,699.79/256,281.57 = 105,141.51/x
  3. Step 3: Cross multiply
    185,699.79x = 256,281.57 × 105,141.51
  4. Step 4: Simplify right side
    185,699.79x = 26,945,831,254.97
  5. Step 5: Solve for x
    x = 26,945,831,254.97/185,699.79
  6. Step 6: Final answer
    x = 145,104.26

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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.