Home / 93,285.18-128,814.03-79,988.22

Finding the Fourth Proportional to 93,285.18, 128,814.03 and 79,988.22

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Solution

The fourth proportional to 93,285.18, 128,814.03 and 79,988.22 is: 110,452.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,285.18 : 128,814.03 = 79,988.22 : x
  2. Step 2: Convert to fraction form
    93,285.18/128,814.03 = 79,988.22/x
  3. Step 3: Cross multiply
    93,285.18x = 128,814.03 × 79,988.22
  4. Step 4: Simplify right side
    93,285.18x = 10,303,604,970.73
  5. Step 5: Solve for x
    x = 10,303,604,970.73/93,285.18
  6. Step 6: Final answer
    x = 110,452.75

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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.