Home / 130,410.46-179,967.18-76,697.74

Finding the Fourth Proportional to 130,410.46, 179,967.18 and 76,697.74

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Solution

The fourth proportional to 130,410.46, 179,967.18 and 76,697.74 is: 105,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,410.46 : 179,967.18 = 76,697.74 : x
  2. Step 2: Convert to fraction form
    130,410.46/179,967.18 = 76,697.74/x
  3. Step 3: Cross multiply
    130,410.46x = 179,967.18 × 76,697.74
  4. Step 4: Simplify right side
    130,410.46x = 13,803,075,980.17
  5. Step 5: Solve for x
    x = 13,803,075,980.17/130,410.46
  6. Step 6: Final answer
    x = 105,843.32

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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.