Home / 130,482.63-180,062.93-76,771.06

Finding the Fourth Proportional to 130,482.63, 180,062.93 and 76,771.06

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Solution

The fourth proportional to 130,482.63, 180,062.93 and 76,771.06 is: 105,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,482.63 : 180,062.93 = 76,771.06 : x
  2. Step 2: Convert to fraction form
    130,482.63/180,062.93 = 76,771.06/x
  3. Step 3: Cross multiply
    130,482.63x = 180,062.93 × 76,771.06
  4. Step 4: Simplify right side
    130,482.63x = 13,823,621,744.58
  5. Step 5: Solve for x
    x = 13,823,621,744.58/130,482.63
  6. Step 6: Final answer
    x = 105,942.24

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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.