Home / 105,253.89-145,248.68-57,506.22

Finding the Fourth Proportional to 105,253.89, 145,248.68 and 57,506.22

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Solution

The fourth proportional to 105,253.89, 145,248.68 and 57,506.22 is: 79,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,253.89 : 145,248.68 = 57,506.22 : x
  2. Step 2: Convert to fraction form
    105,253.89/145,248.68 = 57,506.22/x
  3. Step 3: Cross multiply
    105,253.89x = 145,248.68 × 57,506.22
  4. Step 4: Simplify right side
    105,253.89x = 8,352,701,533.02
  5. Step 5: Solve for x
    x = 8,352,701,533.02/105,253.89
  6. Step 6: Final answer
    x = 79,357.65

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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.