Home / 289,764.04-434,394.78-112,148.80

Finding the Fourth Proportional to 289,764.04, 434,394.78 and 112,148.80

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Solution

The fourth proportional to 289,764.04, 434,394.78 and 112,148.80 is: 168,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,764.04 : 434,394.78 = 112,148.80 : x
  2. Step 2: Convert to fraction form
    289,764.04/434,394.78 = 112,148.80/x
  3. Step 3: Cross multiply
    289,764.04x = 434,394.78 × 112,148.80
  4. Step 4: Simplify right side
    289,764.04x = 48,716,853,303.26
  5. Step 5: Solve for x
    x = 48,716,853,303.26/289,764.04
  6. Step 6: Final answer
    x = 168,125.95

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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.