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Finding the Fourth Proportional to 145,090.67, 217,715.40 and 56,347.65

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Solution

The fourth proportional to 145,090.67, 217,715.40 and 56,347.65 is: 84,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,090.67 : 217,715.40 = 56,347.65 : x
  2. Step 2: Convert to fraction form
    145,090.67/217,715.40 = 56,347.65/x
  3. Step 3: Cross multiply
    145,090.67x = 217,715.40 × 56,347.65
  4. Step 4: Simplify right side
    145,090.67x = 12,267,751,158.81
  5. Step 5: Solve for x
    x = 12,267,751,158.81/145,090.67
  6. Step 6: Final answer
    x = 84,552.31

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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.