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Finding the Fourth Proportional to 145,477.80, 218,054.70 and 70,633.80

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Solution

The fourth proportional to 145,477.80, 218,054.70 and 70,633.80 is: 105,872.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,477.80 : 218,054.70 = 70,633.80 : x
  2. Step 2: Convert to fraction form
    145,477.80/218,054.70 = 70,633.80/x
  3. Step 3: Cross multiply
    145,477.80x = 218,054.70 × 70,633.80
  4. Step 4: Simplify right side
    145,477.80x = 15,402,032,068.86
  5. Step 5: Solve for x
    x = 15,402,032,068.86/145,477.80
  6. Step 6: Final answer
    x = 105,872.04

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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.