Home / 113,775.39-156,831.26-77,903.37

Finding the Fourth Proportional to 113,775.39, 156,831.26 and 77,903.37

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Solution

The fourth proportional to 113,775.39, 156,831.26 and 77,903.37 is: 107,384.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,775.39 : 156,831.26 = 77,903.37 : x
  2. Step 2: Convert to fraction form
    113,775.39/156,831.26 = 77,903.37/x
  3. Step 3: Cross multiply
    113,775.39x = 156,831.26 × 77,903.37
  4. Step 4: Simplify right side
    113,775.39x = 12,217,683,285.83
  5. Step 5: Solve for x
    x = 12,217,683,285.83/113,775.39
  6. Step 6: Final answer
    x = 107,384.24

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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.