Home / 121,430.40-182,145.60-47,558.40

Finding the Fourth Proportional to 121,430.40, 182,145.60 and 47,558.40

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Solution

The fourth proportional to 121,430.40, 182,145.60 and 47,558.40 is: 71,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,430.40 : 182,145.60 = 47,558.40 : x
  2. Step 2: Convert to fraction form
    121,430.40/182,145.60 = 47,558.40/x
  3. Step 3: Cross multiply
    121,430.40x = 182,145.60 × 47,558.40
  4. Step 4: Simplify right side
    121,430.40x = 8,662,553,303.04
  5. Step 5: Solve for x
    x = 8,662,553,303.04/121,430.40
  6. Step 6: Final answer
    x = 71,337.60

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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.