Home / 105,349.21-145,421.45-69,053.00

Finding the Fourth Proportional to 105,349.21, 145,421.45 and 69,053.00

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Solution

The fourth proportional to 105,349.21, 145,421.45 and 69,053.00 is: 95,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,349.21 : 145,421.45 = 69,053.00 : x
  2. Step 2: Convert to fraction form
    105,349.21/145,421.45 = 69,053.00/x
  3. Step 3: Cross multiply
    105,349.21x = 145,421.45 × 69,053.00
  4. Step 4: Simplify right side
    105,349.21x = 10,041,786,314.48
  5. Step 5: Solve for x
    x = 10,041,786,314.48/105,349.21
  6. Step 6: Final answer
    x = 95,319.05

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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.