Home / 145,715.34-218,515.53-70,813.32

Finding the Fourth Proportional to 145,715.34, 218,515.53 and 70,813.32

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Solution

The fourth proportional to 145,715.34, 218,515.53 and 70,813.32 is: 106,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,715.34 : 218,515.53 = 70,813.32 : x
  2. Step 2: Convert to fraction form
    145,715.34/218,515.53 = 70,813.32/x
  3. Step 3: Cross multiply
    145,715.34x = 218,515.53 × 70,813.32
  4. Step 4: Simplify right side
    145,715.34x = 15,473,810,150.86
  5. Step 5: Solve for x
    x = 15,473,810,150.86/145,715.34
  6. Step 6: Final answer
    x = 106,192.05

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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.