Home / 123,409.29-170,295.12-69,699.63

Finding the Fourth Proportional to 123,409.29, 170,295.12 and 69,699.63

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Solution

The fourth proportional to 123,409.29, 170,295.12 and 69,699.63 is: 96,180.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,409.29 : 170,295.12 = 69,699.63 : x
  2. Step 2: Convert to fraction form
    123,409.29/170,295.12 = 69,699.63/x
  3. Step 3: Cross multiply
    123,409.29x = 170,295.12 × 69,699.63
  4. Step 4: Simplify right side
    123,409.29x = 11,869,506,854.81
  5. Step 5: Solve for x
    x = 11,869,506,854.81/123,409.29
  6. Step 6: Final answer
    x = 96,180.01

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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.