Home / 145,232.42-200,421.53-81,570.22

Finding the Fourth Proportional to 145,232.42, 200,421.53 and 81,570.22

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Solution

The fourth proportional to 145,232.42, 200,421.53 and 81,570.22 is: 112,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,232.42 : 200,421.53 = 81,570.22 : x
  2. Step 2: Convert to fraction form
    145,232.42/200,421.53 = 81,570.22/x
  3. Step 3: Cross multiply
    145,232.42x = 200,421.53 × 81,570.22
  4. Step 4: Simplify right side
    145,232.42x = 16,348,428,294.84
  5. Step 5: Solve for x
    x = 16,348,428,294.84/145,232.42
  6. Step 6: Final answer
    x = 112,567.35

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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.