Home / 142,424.64-196,754.40-112,409.28

Finding the Fourth Proportional to 142,424.64, 196,754.40 and 112,409.28

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Solution

The fourth proportional to 142,424.64, 196,754.40 and 112,409.28 is: 155,289.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,424.64 : 196,754.40 = 112,409.28 : x
  2. Step 2: Convert to fraction form
    142,424.64/196,754.40 = 112,409.28/x
  3. Step 3: Cross multiply
    142,424.64x = 196,754.40 × 112,409.28
  4. Step 4: Simplify right side
    142,424.64x = 22,117,020,440.83
  5. Step 5: Solve for x
    x = 22,117,020,440.83/142,424.64
  6. Step 6: Final answer
    x = 155,289.28

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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.