Home / 97,497.81-134,416.87-77,421.15

Finding the Fourth Proportional to 97,497.81, 134,416.87 and 77,421.15

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Solution

The fourth proportional to 97,497.81, 134,416.87 and 77,421.15 is: 106,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,497.81 : 134,416.87 = 77,421.15 : x
  2. Step 2: Convert to fraction form
    97,497.81/134,416.87 = 77,421.15/x
  3. Step 3: Cross multiply
    97,497.81x = 134,416.87 × 77,421.15
  4. Step 4: Simplify right side
    97,497.81x = 10,406,708,461.25
  5. Step 5: Solve for x
    x = 10,406,708,461.25/97,497.81
  6. Step 6: Final answer
    x = 106,737.87

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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.