Home / 131,428.84-181,367.47-83,056.62

Finding the Fourth Proportional to 131,428.84, 181,367.47 and 83,056.62

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Solution

The fourth proportional to 131,428.84, 181,367.47 and 83,056.62 is: 114,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,428.84 : 181,367.47 = 83,056.62 : x
  2. Step 2: Convert to fraction form
    131,428.84/181,367.47 = 83,056.62/x
  3. Step 3: Cross multiply
    131,428.84x = 181,367.47 × 83,056.62
  4. Step 4: Simplify right side
    131,428.84x = 15,063,768,955.64
  5. Step 5: Solve for x
    x = 15,063,768,955.64/131,428.84
  6. Step 6: Final answer
    x = 114,615.40

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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.