Home / 122,205.47-168,643.14-71,248.37

Finding the Fourth Proportional to 122,205.47, 168,643.14 and 71,248.37

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Solution

The fourth proportional to 122,205.47, 168,643.14 and 71,248.37 is: 98,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,205.47 : 168,643.14 = 71,248.37 : x
  2. Step 2: Convert to fraction form
    122,205.47/168,643.14 = 71,248.37/x
  3. Step 3: Cross multiply
    122,205.47x = 168,643.14 × 71,248.37
  4. Step 4: Simplify right side
    122,205.47x = 12,015,547,993.47
  5. Step 5: Solve for x
    x = 12,015,547,993.47/122,205.47
  6. Step 6: Final answer
    x = 98,322.51

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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.