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Finding the Fourth Proportional to 144,133.60, 216,200.40 and 99,810.40

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Solution

The fourth proportional to 144,133.60, 216,200.40 and 99,810.40 is: 149,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,133.60 : 216,200.40 = 99,810.40 : x
  2. Step 2: Convert to fraction form
    144,133.60/216,200.40 = 99,810.40/x
  3. Step 3: Cross multiply
    144,133.60x = 216,200.40 × 99,810.40
  4. Step 4: Simplify right side
    144,133.60x = 21,579,048,404.16
  5. Step 5: Solve for x
    x = 21,579,048,404.16/144,133.60
  6. Step 6: Final answer
    x = 149,715.60

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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.