Home / 130,973.06-180,764.50-77,271.22

Finding the Fourth Proportional to 130,973.06, 180,764.50 and 77,271.22

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Solution

The fourth proportional to 130,973.06, 180,764.50 and 77,271.22 is: 106,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,973.06 : 180,764.50 = 77,271.22 : x
  2. Step 2: Convert to fraction form
    130,973.06/180,764.50 = 77,271.22/x
  3. Step 3: Cross multiply
    130,973.06x = 180,764.50 × 77,271.22
  4. Step 4: Simplify right side
    130,973.06x = 13,967,893,447.69
  5. Step 5: Solve for x
    x = 13,967,893,447.69/130,973.06
  6. Step 6: Final answer
    x = 106,647.07

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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.