Home / 105,741.65-145,925.75-57,994.89

Finding the Fourth Proportional to 105,741.65, 145,925.75 and 57,994.89

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Solution

The fourth proportional to 105,741.65, 145,925.75 and 57,994.89 is: 80,034.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,741.65 : 145,925.75 = 57,994.89 : x
  2. Step 2: Convert to fraction form
    105,741.65/145,925.75 = 57,994.89/x
  3. Step 3: Cross multiply
    105,741.65x = 145,925.75 × 57,994.89
  4. Step 4: Simplify right side
    105,741.65x = 8,462,947,417.18
  5. Step 5: Solve for x
    x = 8,462,947,417.18/105,741.65
  6. Step 6: Final answer
    x = 80,034.19

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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.