Home / 76,364.16-105,143.04-69,365.76

Finding the Fourth Proportional to 76,364.16, 105,143.04 and 69,365.76

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Solution

The fourth proportional to 76,364.16, 105,143.04 and 69,365.76 is: 95,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,364.16 : 105,143.04 = 69,365.76 : x
  2. Step 2: Convert to fraction form
    76,364.16/105,143.04 = 69,365.76/x
  3. Step 3: Cross multiply
    76,364.16x = 105,143.04 × 69,365.76
  4. Step 4: Simplify right side
    76,364.16x = 7,293,326,878.31
  5. Step 5: Solve for x
    x = 7,293,326,878.31/76,364.16
  6. Step 6: Final answer
    x = 95,507.20

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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.