Home / 120,587.68-166,421.52-70,285.60

Finding the Fourth Proportional to 120,587.68, 166,421.52 and 70,285.60

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Solution

The fourth proportional to 120,587.68, 166,421.52 and 70,285.60 is: 97,000.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,587.68 : 166,421.52 = 70,285.60 : x
  2. Step 2: Convert to fraction form
    120,587.68/166,421.52 = 70,285.60/x
  3. Step 3: Cross multiply
    120,587.68x = 166,421.52 × 70,285.60
  4. Step 4: Simplify right side
    120,587.68x = 11,697,036,386.11
  5. Step 5: Solve for x
    x = 11,697,036,386.11/120,587.68
  6. Step 6: Final answer
    x = 97,000.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.