Home / 130,342.87-179,831.34-72,973.74

Finding the Fourth Proportional to 130,342.87, 179,831.34 and 72,973.74

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Solution

The fourth proportional to 130,342.87, 179,831.34 and 72,973.74 is: 100,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,342.87 : 179,831.34 = 72,973.74 : x
  2. Step 2: Convert to fraction form
    130,342.87/179,831.34 = 72,973.74/x
  3. Step 3: Cross multiply
    130,342.87x = 179,831.34 × 72,973.74
  4. Step 4: Simplify right side
    130,342.87x = 13,122,966,123.38
  5. Step 5: Solve for x
    x = 13,122,966,123.38/130,342.87
  6. Step 6: Final answer
    x = 100,680.35

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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.