Home / 122,117.20-183,089.40-47,208.40

Finding the Fourth Proportional to 122,117.20, 183,089.40 and 47,208.40

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Solution

The fourth proportional to 122,117.20, 183,089.40 and 47,208.40 is: 70,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117.20 : 183,089.40 = 47,208.40 : x
  2. Step 2: Convert to fraction form
    122,117.20/183,089.40 = 47,208.40/x
  3. Step 3: Cross multiply
    122,117.20x = 183,089.40 × 47,208.40
  4. Step 4: Simplify right side
    122,117.20x = 8,643,357,630.96
  5. Step 5: Solve for x
    x = 8,643,357,630.96/122,117.20
  6. Step 6: Final answer
    x = 70,779.20

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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.