Home / 122,428.70-183,643.05-117,590.30

Finding the Fourth Proportional to 122,428.70, 183,643.05 and 117,590.30

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Solution

The fourth proportional to 122,428.70, 183,643.05 and 117,590.30 is: 176,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,428.70 : 183,643.05 = 117,590.30 : x
  2. Step 2: Convert to fraction form
    122,428.70/183,643.05 = 117,590.30/x
  3. Step 3: Cross multiply
    122,428.70x = 183,643.05 × 117,590.30
  4. Step 4: Simplify right side
    122,428.70x = 21,594,641,342.42
  5. Step 5: Solve for x
    x = 21,594,641,342.42/122,428.70
  6. Step 6: Final answer
    x = 176,385.45

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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.