Home / 121,570.23-182,441.01-42,690.60

Finding the Fourth Proportional to 121,570.23, 182,441.01 and 42,690.60

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Solution

The fourth proportional to 121,570.23, 182,441.01 and 42,690.60 is: 64,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,570.23 : 182,441.01 = 42,690.60 : x
  2. Step 2: Convert to fraction form
    121,570.23/182,441.01 = 42,690.60/x
  3. Step 3: Cross multiply
    121,570.23x = 182,441.01 × 42,690.60
  4. Step 4: Simplify right side
    121,570.23x = 7,788,516,181.51
  5. Step 5: Solve for x
    x = 7,788,516,181.51/121,570.23
  6. Step 6: Final answer
    x = 64,065.98

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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.