Home / 105,800.13-145,993.55-63,357.57

Finding the Fourth Proportional to 105,800.13, 145,993.55 and 63,357.57

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Solution

The fourth proportional to 105,800.13, 145,993.55 and 63,357.57 is: 87,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,800.13 : 145,993.55 = 63,357.57 : x
  2. Step 2: Convert to fraction form
    105,800.13/145,993.55 = 63,357.57/x
  3. Step 3: Cross multiply
    105,800.13x = 145,993.55 × 63,357.57
  4. Step 4: Simplify right side
    105,800.13x = 9,249,796,246.89
  5. Step 5: Solve for x
    x = 9,249,796,246.89/105,800.13
  6. Step 6: Final answer
    x = 87,427.08

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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.