Home / 130,975.68-180,746.46-74,386.92

Finding the Fourth Proportional to 130,975.68, 180,746.46 and 74,386.92

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Solution

The fourth proportional to 130,975.68, 180,746.46 and 74,386.92 is: 102,653.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,975.68 : 180,746.46 = 74,386.92 : x
  2. Step 2: Convert to fraction form
    130,975.68/180,746.46 = 74,386.92/x
  3. Step 3: Cross multiply
    130,975.68x = 180,746.46 × 74,386.92
  4. Step 4: Simplify right side
    130,975.68x = 13,445,172,460.30
  5. Step 5: Solve for x
    x = 13,445,172,460.30/130,975.68
  6. Step 6: Final answer
    x = 102,653.96

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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.