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Finding the Fourth Proportional to 141,697.69, 212,313.25 and 99,007.45

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Solution

The fourth proportional to 141,697.69, 212,313.25 and 99,007.45 is: 148,348.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,697.69 : 212,313.25 = 99,007.45 : x
  2. Step 2: Convert to fraction form
    141,697.69/212,313.25 = 99,007.45/x
  3. Step 3: Cross multiply
    141,697.69x = 212,313.25 × 99,007.45
  4. Step 4: Simplify right side
    141,697.69x = 21,020,593,483.71
  5. Step 5: Solve for x
    x = 21,020,593,483.71/141,697.69
  6. Step 6: Final answer
    x = 148,348.17

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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.