Home / 128,048.04-176,688.90-74,324.52

Finding the Fourth Proportional to 128,048.04, 176,688.90 and 74,324.52

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Solution

The fourth proportional to 128,048.04, 176,688.90 and 74,324.52 is: 102,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,048.04 : 176,688.90 = 74,324.52 : x
  2. Step 2: Convert to fraction form
    128,048.04/176,688.90 = 74,324.52/x
  3. Step 3: Cross multiply
    128,048.04x = 176,688.90 × 74,324.52
  4. Step 4: Simplify right side
    128,048.04x = 13,132,317,681.83
  5. Step 5: Solve for x
    x = 13,132,317,681.83/128,048.04
  6. Step 6: Final answer
    x = 102,557.74

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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.