Home / 95,438.41-142,970.35-77,688.16

Finding the Fourth Proportional to 95,438.41, 142,970.35 and 77,688.16

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Solution

The fourth proportional to 95,438.41, 142,970.35 and 77,688.16 is: 116,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,438.41 : 142,970.35 = 77,688.16 : x
  2. Step 2: Convert to fraction form
    95,438.41/142,970.35 = 77,688.16/x
  3. Step 3: Cross multiply
    95,438.41x = 142,970.35 × 77,688.16
  4. Step 4: Simplify right side
    95,438.41x = 11,107,103,426.06
  5. Step 5: Solve for x
    x = 11,107,103,426.06/95,438.41
  6. Step 6: Final answer
    x = 116,379.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.