Home / 193,140.32-289,543.06-74,730.20

Finding the Fourth Proportional to 193,140.32, 289,543.06 and 74,730.20

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Solution

The fourth proportional to 193,140.32, 289,543.06 and 74,730.20 is: 112,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,140.32 : 289,543.06 = 74,730.20 : x
  2. Step 2: Convert to fraction form
    193,140.32/289,543.06 = 74,730.20/x
  3. Step 3: Cross multiply
    193,140.32x = 289,543.06 × 74,730.20
  4. Step 4: Simplify right side
    193,140.32x = 21,637,610,782.41
  5. Step 5: Solve for x
    x = 21,637,610,782.41/193,140.32
  6. Step 6: Final answer
    x = 112,030.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.