Home / 145,189.13-200,407.98-94,111.74

Finding the Fourth Proportional to 145,189.13, 200,407.98 and 94,111.74

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Solution

The fourth proportional to 145,189.13, 200,407.98 and 94,111.74 is: 129,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,189.13 : 200,407.98 = 94,111.74 : x
  2. Step 2: Convert to fraction form
    145,189.13/200,407.98 = 94,111.74/x
  3. Step 3: Cross multiply
    145,189.13x = 200,407.98 × 94,111.74
  4. Step 4: Simplify right side
    145,189.13x = 18,860,743,707.69
  5. Step 5: Solve for x
    x = 18,860,743,707.69/145,189.13
  6. Step 6: Final answer
    x = 129,904.65

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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.