Home / 191,062.21-286,596.07-72,740.05

Finding the Fourth Proportional to 191,062.21, 286,596.07 and 72,740.05

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Solution

The fourth proportional to 191,062.21, 286,596.07 and 72,740.05 is: 109,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,062.21 : 286,596.07 = 72,740.05 : x
  2. Step 2: Convert to fraction form
    191,062.21/286,596.07 = 72,740.05/x
  3. Step 3: Cross multiply
    191,062.21x = 286,596.07 × 72,740.05
  4. Step 4: Simplify right side
    191,062.21x = 20,847,012,461.60
  5. Step 5: Solve for x
    x = 20,847,012,461.60/191,062.21
  6. Step 6: Final answer
    x = 109,111.12

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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.