Home / 105,510.12-145,613.86-63,067.74

Finding the Fourth Proportional to 105,510.12, 145,613.86 and 63,067.74

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Solution

The fourth proportional to 105,510.12, 145,613.86 and 63,067.74 is: 87,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,510.12 : 145,613.86 = 63,067.74 : x
  2. Step 2: Convert to fraction form
    105,510.12/145,613.86 = 63,067.74/x
  3. Step 3: Cross multiply
    105,510.12x = 145,613.86 × 63,067.74
  4. Step 4: Simplify right side
    105,510.12x = 9,183,537,062.88
  5. Step 5: Solve for x
    x = 9,183,537,062.88/105,510.12
  6. Step 6: Final answer
    x = 87,039.40

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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.