Home / 130,974.54-180,746.12-74,386.32

Finding the Fourth Proportional to 130,974.54, 180,746.12 and 74,386.32

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Solution

The fourth proportional to 130,974.54, 180,746.12 and 74,386.32 is: 102,653.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,974.54 : 180,746.12 = 74,386.32 : x
  2. Step 2: Convert to fraction form
    130,974.54/180,746.12 = 74,386.32/x
  3. Step 3: Cross multiply
    130,974.54x = 180,746.12 × 74,386.32
  4. Step 4: Simplify right side
    130,974.54x = 13,445,038,721.08
  5. Step 5: Solve for x
    x = 13,445,038,721.08/130,974.54
  6. Step 6: Final answer
    x = 102,653.83

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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.