Home / 129,547.84-194,328.64-40,808.24

Finding the Fourth Proportional to 129,547.84, 194,328.64 and 40,808.24

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Solution

The fourth proportional to 129,547.84, 194,328.64 and 40,808.24 is: 61,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,547.84 : 194,328.64 = 40,808.24 : x
  2. Step 2: Convert to fraction form
    129,547.84/194,328.64 = 40,808.24/x
  3. Step 3: Cross multiply
    129,547.84x = 194,328.64 × 40,808.24
  4. Step 4: Simplify right side
    129,547.84x = 7,930,209,779.99
  5. Step 5: Solve for x
    x = 7,930,209,779.99/129,547.84
  6. Step 6: Final answer
    x = 61,214.53

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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.