Home / 113,389.81-156,474.59-61,705.23

Finding the Fourth Proportional to 113,389.81, 156,474.59 and 61,705.23

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Solution

The fourth proportional to 113,389.81, 156,474.59 and 61,705.23 is: 85,151.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,389.81 : 156,474.59 = 61,705.23 : x
  2. Step 2: Convert to fraction form
    113,389.81/156,474.59 = 61,705.23/x
  3. Step 3: Cross multiply
    113,389.81x = 156,474.59 × 61,705.23
  4. Step 4: Simplify right side
    113,389.81x = 9,655,299,669.80
  5. Step 5: Solve for x
    x = 9,655,299,669.80/113,389.81
  6. Step 6: Final answer
    x = 85,151.39

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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.