Home / 105,541.86-145,646.28-57,795.19

Finding the Fourth Proportional to 105,541.86, 145,646.28 and 57,795.19

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Solution

The fourth proportional to 105,541.86, 145,646.28 and 57,795.19 is: 79,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,541.86 : 145,646.28 = 57,795.19 : x
  2. Step 2: Convert to fraction form
    105,541.86/145,646.28 = 57,795.19/x
  3. Step 3: Cross multiply
    105,541.86x = 145,646.28 × 57,795.19
  4. Step 4: Simplify right side
    105,541.86x = 8,417,654,425.39
  5. Step 5: Solve for x
    x = 8,417,654,425.39/105,541.86
  6. Step 6: Final answer
    x = 79,756.55

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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.