Home / 141,312.36-195,011.70-77,651.40

Finding the Fourth Proportional to 141,312.36, 195,011.70 and 77,651.40

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Solution

The fourth proportional to 141,312.36, 195,011.70 and 77,651.40 is: 107,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,312.36 : 195,011.70 = 77,651.40 : x
  2. Step 2: Convert to fraction form
    141,312.36/195,011.70 = 77,651.40/x
  3. Step 3: Cross multiply
    141,312.36x = 195,011.70 × 77,651.40
  4. Step 4: Simplify right side
    141,312.36x = 15,142,931,521.38
  5. Step 5: Solve for x
    x = 15,142,931,521.38/141,312.36
  6. Step 6: Final answer
    x = 107,159.29

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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.