Home / 130,493.52-180,072.54-76,768.16

Finding the Fourth Proportional to 130,493.52, 180,072.54 and 76,768.16

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Solution

The fourth proportional to 130,493.52, 180,072.54 and 76,768.16 is: 105,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,493.52 : 180,072.54 = 76,768.16 : x
  2. Step 2: Convert to fraction form
    130,493.52/180,072.54 = 76,768.16/x
  3. Step 3: Cross multiply
    130,493.52x = 180,072.54 × 76,768.16
  4. Step 4: Simplify right side
    130,493.52x = 13,823,837,774.50
  5. Step 5: Solve for x
    x = 13,823,837,774.50/130,493.52
  6. Step 6: Final answer
    x = 105,935.05

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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.