Home / 130,473.65-180,036.81-76,739.06

Finding the Fourth Proportional to 130,473.65, 180,036.81 and 76,739.06

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Solution

The fourth proportional to 130,473.65, 180,036.81 and 76,739.06 is: 105,890.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,473.65 : 180,036.81 = 76,739.06 : x
  2. Step 2: Convert to fraction form
    130,473.65/180,036.81 = 76,739.06/x
  3. Step 3: Cross multiply
    130,473.65x = 180,036.81 × 76,739.06
  4. Step 4: Simplify right side
    130,473.65x = 13,815,856,014.89
  5. Step 5: Solve for x
    x = 13,815,856,014.89/130,473.65
  6. Step 6: Final answer
    x = 105,890.01

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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.