Home / 102,315.81-141,190.31-56,373.93

Finding the Fourth Proportional to 102,315.81, 141,190.31 and 56,373.93

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Solution

The fourth proportional to 102,315.81, 141,190.31 and 56,373.93 is: 77,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,315.81 : 141,190.31 = 56,373.93 : x
  2. Step 2: Convert to fraction form
    102,315.81/141,190.31 = 56,373.93/x
  3. Step 3: Cross multiply
    102,315.81x = 141,190.31 × 56,373.93
  4. Step 4: Simplify right side
    102,315.81x = 7,959,452,370.75
  5. Step 5: Solve for x
    x = 7,959,452,370.75/102,315.81
  6. Step 6: Final answer
    x = 77,792.99

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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.