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Finding the Fourth Proportional to 144,030.10, 216,045.15 and 84,835.30

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Solution

The fourth proportional to 144,030.10, 216,045.15 and 84,835.30 is: 127,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,030.10 : 216,045.15 = 84,835.30 : x
  2. Step 2: Convert to fraction form
    144,030.10/216,045.15 = 84,835.30/x
  3. Step 3: Cross multiply
    144,030.10x = 216,045.15 × 84,835.30
  4. Step 4: Simplify right side
    144,030.10x = 18,328,255,113.80
  5. Step 5: Solve for x
    x = 18,328,255,113.80/144,030.10
  6. Step 6: Final answer
    x = 127,252.95

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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.