Home / 141,718.81-195,569.61-78,062.53

Finding the Fourth Proportional to 141,718.81, 195,569.61 and 78,062.53

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Solution

The fourth proportional to 141,718.81, 195,569.61 and 78,062.53 is: 107,725.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,718.81 : 195,569.61 = 78,062.53 : x
  2. Step 2: Convert to fraction form
    141,718.81/195,569.61 = 78,062.53/x
  3. Step 3: Cross multiply
    141,718.81x = 195,569.61 × 78,062.53
  4. Step 4: Simplify right side
    141,718.81x = 15,266,658,547.71
  5. Step 5: Solve for x
    x = 15,266,658,547.71/141,718.81
  6. Step 6: Final answer
    x = 107,725.00

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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.