Home / 144,428.70-216,643.05-102,438.30

Finding the Fourth Proportional to 144,428.70, 216,643.05 and 102,438.30

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Solution

The fourth proportional to 144,428.70, 216,643.05 and 102,438.30 is: 153,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,428.70 : 216,643.05 = 102,438.30 : x
  2. Step 2: Convert to fraction form
    144,428.70/216,643.05 = 102,438.30/x
  3. Step 3: Cross multiply
    144,428.70x = 216,643.05 × 102,438.30
  4. Step 4: Simplify right side
    144,428.70x = 22,192,545,748.82
  5. Step 5: Solve for x
    x = 22,192,545,748.82/144,428.70
  6. Step 6: Final answer
    x = 153,657.45

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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.