Home / 130,666.02-180,396.40-82,309.40

Finding the Fourth Proportional to 130,666.02, 180,396.40 and 82,309.40

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Solution

The fourth proportional to 130,666.02, 180,396.40 and 82,309.40 is: 113,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,666.02 : 180,396.40 = 82,309.40 : x
  2. Step 2: Convert to fraction form
    130,666.02/180,396.40 = 82,309.40/x
  3. Step 3: Cross multiply
    130,666.02x = 180,396.40 × 82,309.40
  4. Step 4: Simplify right side
    130,666.02x = 14,848,319,446.16
  5. Step 5: Solve for x
    x = 14,848,319,446.16/130,666.02
  6. Step 6: Final answer
    x = 113,635.66

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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.