Home / 157,913.04-236,869.56-78,947.76

Finding the Fourth Proportional to 157,913.04, 236,869.56 and 78,947.76

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Solution

The fourth proportional to 157,913.04, 236,869.56 and 78,947.76 is: 118,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,913.04 : 236,869.56 = 78,947.76 : x
  2. Step 2: Convert to fraction form
    157,913.04/236,869.56 = 78,947.76/x
  3. Step 3: Cross multiply
    157,913.04x = 236,869.56 × 78,947.76
  4. Step 4: Simplify right side
    157,913.04x = 18,700,321,174.19
  5. Step 5: Solve for x
    x = 18,700,321,174.19/157,913.04
  6. Step 6: Final answer
    x = 118,421.64

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1.5x scale

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.