Home / 122,319.74-168,801.19-71,322.63

Finding the Fourth Proportional to 122,319.74, 168,801.19 and 71,322.63

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Solution

The fourth proportional to 122,319.74, 168,801.19 and 71,322.63 is: 98,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,319.74 : 168,801.19 = 71,322.63 : x
  2. Step 2: Convert to fraction form
    122,319.74/168,801.19 = 71,322.63/x
  3. Step 3: Cross multiply
    122,319.74x = 168,801.19 × 71,322.63
  4. Step 4: Simplify right side
    122,319.74x = 12,039,343,973.92
  5. Step 5: Solve for x
    x = 12,039,343,973.92/122,319.74
  6. Step 6: Final answer
    x = 98,425.19

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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.