Home / 142,417.14-196,555.23-81,986.46

Finding the Fourth Proportional to 142,417.14, 196,555.23 and 81,986.46

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Solution

The fourth proportional to 142,417.14, 196,555.23 and 81,986.46 is: 113,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,417.14 : 196,555.23 = 81,986.46 : x
  2. Step 2: Convert to fraction form
    142,417.14/196,555.23 = 81,986.46/x
  3. Step 3: Cross multiply
    142,417.14x = 196,555.23 × 81,986.46
  4. Step 4: Simplify right side
    142,417.14x = 16,114,867,502.19
  5. Step 5: Solve for x
    x = 16,114,867,502.19/142,417.14
  6. Step 6: Final answer
    x = 113,152.58

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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.