Home / 125,831.10-173,671.80-72,152.40

Finding the Fourth Proportional to 125,831.10, 173,671.80 and 72,152.40

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Solution

The fourth proportional to 125,831.10, 173,671.80 and 72,152.40 is: 99,584.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,831.10 : 173,671.80 = 72,152.40 : x
  2. Step 2: Convert to fraction form
    125,831.10/173,671.80 = 72,152.40/x
  3. Step 3: Cross multiply
    125,831.10x = 173,671.80 × 72,152.40
  4. Step 4: Simplify right side
    125,831.10x = 12,530,837,182.32
  5. Step 5: Solve for x
    x = 12,530,837,182.32/125,831.10
  6. Step 6: Final answer
    x = 99,584.58

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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.