Home / 120,947.60-181,421.40-37,830.80

Finding the Fourth Proportional to 120,947.60, 181,421.40 and 37,830.80

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Solution

The fourth proportional to 120,947.60, 181,421.40 and 37,830.80 is: 56,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,947.60 : 181,421.40 = 37,830.80 : x
  2. Step 2: Convert to fraction form
    120,947.60/181,421.40 = 37,830.80/x
  3. Step 3: Cross multiply
    120,947.60x = 181,421.40 × 37,830.80
  4. Step 4: Simplify right side
    120,947.60x = 6,863,316,699.12
  5. Step 5: Solve for x
    x = 6,863,316,699.12/120,947.60
  6. Step 6: Final answer
    x = 56,746.20

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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.