Home / 145,368.32-200,598.30-81,715.72

Finding the Fourth Proportional to 145,368.32, 200,598.30 and 81,715.72

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Solution

The fourth proportional to 145,368.32, 200,598.30 and 81,715.72 is: 112,762.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,368.32 : 200,598.30 = 81,715.72 : x
  2. Step 2: Convert to fraction form
    145,368.32/200,598.30 = 81,715.72/x
  3. Step 3: Cross multiply
    145,368.32x = 200,598.30 × 81,715.72
  4. Step 4: Simplify right side
    145,368.32x = 16,392,034,515.28
  5. Step 5: Solve for x
    x = 16,392,034,515.28/145,368.32
  6. Step 6: Final answer
    x = 112,762.08

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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.