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Finding the Fourth Proportional to 144,307.60, 199,205.80 and 87,737.04

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Solution

The fourth proportional to 144,307.60, 199,205.80 and 87,737.04 is: 121,114.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,307.60 : 199,205.80 = 87,737.04 : x
  2. Step 2: Convert to fraction form
    144,307.60/199,205.80 = 87,737.04/x
  3. Step 3: Cross multiply
    144,307.60x = 199,205.80 × 87,737.04
  4. Step 4: Simplify right side
    144,307.60x = 17,477,727,242.83
  5. Step 5: Solve for x
    x = 17,477,727,242.83/144,307.60
  6. Step 6: Final answer
    x = 121,114.39

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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.